66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
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/*
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* linux/include/linux/clock_cooling.h
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*
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* Copyright (C) 2014 Eduardo Valentin <edubezval@gmail.com>
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*
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* Copyright (C) 2013 Texas Instruments Inc.
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* Contact: Eduardo Valentin <eduardo.valentin@ti.com>
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*
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* Highly based on cpu_cooling.c.
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* Copyright (C) 2012 Samsung Electronics Co., Ltd(http://www.samsung.com)
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* Copyright (C) 2012 Amit Daniel <amit.kachhap@linaro.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#ifndef __CPU_COOLING_H__
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#define __CPU_COOLING_H__
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#include <linux/of.h>
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#include <linux/thermal.h>
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#include <linux/cpumask.h>
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#ifdef CONFIG_CLOCK_THERMAL
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/**
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* clock_cooling_register - function to create clock cooling device.
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* @dev: struct device pointer to the device used as clock cooling device.
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* @clock_name: string containing the clock used as cooling mechanism.
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*/
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struct thermal_cooling_device *
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clock_cooling_register(struct device *dev, const char *clock_name);
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/**
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* clock_cooling_unregister - function to remove clock cooling device.
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* @cdev: thermal cooling device pointer.
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*/
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void clock_cooling_unregister(struct thermal_cooling_device *cdev);
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unsigned long clock_cooling_get_level(struct thermal_cooling_device *cdev,
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unsigned long freq);
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#else /* !CONFIG_CLOCK_THERMAL */
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static inline struct thermal_cooling_device *
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clock_cooling_register(struct device *dev, const char *clock_name)
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{
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return NULL;
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}
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static inline
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void clock_cooling_unregister(struct thermal_cooling_device *cdev)
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{
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}
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static inline
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unsigned long clock_cooling_get_level(struct thermal_cooling_device *cdev,
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unsigned long freq)
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{
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return THERMAL_CSTATE_INVALID;
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}
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#endif /* CONFIG_CLOCK_THERMAL */
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#endif /* __CPU_COOLING_H__ */
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